SWZDI Home Projects Board of Directors Events

LightGuard System

Status: Complete

Description: This project designed and evaluated a system of lighted RPMs used to delineate a crossover in advance of an Interstate work zone. Vehicle speeds were collected at the crossover and approximately half a mile upstream of the crossover. Lane keeping data was also collected by utilizing several automatic traffic recorders, a complex array of pneumatic hoses, and some custom software. The system was found to result in statistically significant reductions in speed and in the number of vehicles nearing the edgeline (i.e., within 1-ft for cars, 2-ft for trucks). The system demonstrated the capability to improve delineation in a rural rossover, but the need for power to operate the lights could be problematic in some locations. Because the system was experimental, no cost figures are available.

Report: MwSWZDI-2000-Meyer-LightGuard_System.pdf 190 kb (published 2000)

State conducting research: Kansas

Vendor:

  • LightGuard Systems, Inc.

Author:

  • Meyer, Eric (University of Kansas)
Iowa State University does not discriminate on the basis of race, color, age, ethnicity, religion, national origin, pregnancy, sexual orientation, gender identity, genetic information, sex, marital status, disability, or status as a U.S. veteran. Inquiries regarding non-discrimination policies may be directed to Office of Equal Opportunity, Title IX/ADA Coordinator and Affirmative Action Officer, 3410 Beardshear Hall, 515 Morrill Road, Ames, Iowa 50011, Tel. 515 294-7612, Hotline: 515-294-1222, eooffice@iastate.edu.